Oxidoreductases;
Acting on paired donors, with incorporation or reduction of molecular oxygen;
With reduced flavin or flavoprotein as one donor, and incorporation of one atom of oxygen into the other donor

A cytochrome P-450 (heme-thiolate) protein isolated from the plant Oryza sativa (rice) that is involved in phytocassanes biosynthesis. Depending on the order of activities, the enzyme may form either ent-cassa-12,15-dien-2-one or ent-cassa-12,15-diene-2beta,3beta-diol as an intermediate.